FVXX20 KWBC 261843 VOLCANIC ASH ADVISORY ISSUED: 2003SEP26/1900Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/289 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: SERIES OF EMISSIONS STARTING AT 21/2345Z OBS ASH DATE/TIME: 26/1815Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING SW 10-15 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS. REMARKS: THE ASH PLUME OBSERVED EARLIER MOVING TO THE SOUTHWEST OF THE VOLCANO HAS BECOME TOO THIN TO BE SEEN IN SATELLITE IMAGERY. THE SUMMIT IS NO LONGER VISIBLE DUE TO DENSE CLOUDS. MODEL WINDS INDICATE THAT ANY REMAINING ASH SHOULD MOVE TO THE SOUTHWEST AT 10-15 KNOTS. NEXT ADVISORY: WILL BE ISSUED BY 2003SEP27/0100Z. NNNN